Home / 190,612.26-263,076.47-105,756.66

Finding the Fourth Proportional to 190,612.26, 263,076.47 and 105,756.66

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Solution

The fourth proportional to 190,612.26, 263,076.47 and 105,756.66 is: 145,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,612.26 : 263,076.47 = 105,756.66 : x
  2. Step 2: Convert to fraction form
    190,612.26/263,076.47 = 105,756.66/x
  3. Step 3: Cross multiply
    190,612.26x = 263,076.47 × 105,756.66
  4. Step 4: Simplify right side
    190,612.26x = 27,822,088,791.79
  5. Step 5: Solve for x
    x = 27,822,088,791.79/190,612.26
  6. Step 6: Final answer
    x = 145,961.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.